Quantity Calculator

Concrete Mix

The calculator will indicate the estimated number of 25 kg or 30 kg bags of Quikrete® Concrete Mix needed to
build a 3", 4" or 6" slab (with a typical waste factor). Yields are approximate and will vary based upon placement
methods, equipment utilized and do not include allowance for uneven subgrade, waste, etc.

SLABS

Enter the size of the slab
you want to build:

either:

or:

Sq Feet

Length (Feet)

Width (F eet)

for 3" (7.6 cm) thick

25 kg

30 kg

25 kg

30 kg

# bags

# bags

for 4" (10 cm) thick

# bags

# bags

for 6" (15 cm) thick

# bags

# bags

SONOTUBE

25 kg

30 kg

25 kg

30 kg

# of bags required per 6" x 4' tube

1.8

1.5

6" x 8'

3.7

3.0

8" x 4'

3.2

2.7

8" x 8'

6.5

5.4

10" x 4'

5.1

4.2

10" x 8'

10.1

8.5

12" x 4'

7.3

6.1

12" x 8'

14.6

12.2

Bag estimates are rounded up

PSI 6000/Crack Resistant Concrete Mix

The calculator will indicate the estimated number of 25 kg bags of Quikrete® 6000 or Quikrete® Crack
Resistant Concrete Mix needed to build a 3", 4" or 6" slab (with a typical waste factor). Yields are
approximate and will vary based upon placement methods, equipment utilized and do not include
allowance for uneven subgrade, waste, etc.